Equalizing mechanism for pressing machines



Oct. 18, 1932. E. DAVS E'QUALIZING MECHANISM FOR PREssING MAQHINES Filed AMay l2, 1928 l RN my k) INVENTOR.

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Patented ct. 18, 1932 narran srarss Parent orifice :earner Davis, or

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rnosrnrtrrv* COMPANY EQUALIZING MECHANISM FOB PRESSING MACHINES Application :filed May 12, 1928. Serial No. 277,110.

This invention relates to pressing machines as garment and laundry pressing machines in which the cooperating pressing elements are multiple or consist ot a plurality ot members, the members of one element having relative movement under the pressure ot the other element. The invention has tor its object a particularly simple and efficient fluid pressure operated means for equalizing the pressure between the relatively movable members ot one of the cooperating pressing elements.

rlhe invention consists in the novel features and in the combinations and constructions hereinafter set torth and claimed.

1n describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figure 1 is a front elevation partly in sec tion ot the coacting pressing 'elements ot a pressing machine embodying my invention.

Figure 2 is an end elevation of parts seen in Figure 1.

Figure 8 is a side. elevation of a complete 7 Jressino' machine embod in m invention.

Figure 4 is a view similar to Figure 1 of a modified torni of the invention.

1 and 2 designate respectively the cooperating pressing elements as a whole, these being respectively a head and a buck, the head being movable toward and from the buck. Each member 1 and 2 is here shown as having a plurality of pressing members, the members ot the head being designated 8, i and 5 and the members ot the buck paired therewith being designated 6, 7 and 8. The members of one ot these elements are movable relatively to each other under the pressure of the members ot the other element and in the illustrated embodiment ot my invention, the members 6, 7 and 8 ot the buck are relatively movable.

The machine here shown is a shirt pressing machine and adapted to press the neck yoke,

neck band and Cutts of a shirt in one operal tion. rlhe members 3, 6 press the neck yoke and neck band of shirts having unattached collars and the neck yoke and collars ot .shirts having attached collars. The pairs ot members 4, 7 and 5, 8 pre-ss the cuits.

1n the form ot my invention shown in Figure l, the equalizing means tween all three members 6, 7 and 8 andv in the form shown in Figure 4, the equalizing means is provided only between the outside or culi pressing members 9 and 10. Y

1n the illustrated embodiment ot my invention, the fluid pressure operated means comprises a pressure chamber, 'one ior each of the relatively movable members 6, 7, 8 or 9 and 10, a movable pressure actuated part in each of the chambers and motion transmitting means between each ot said parts and the respective relatively movablek member associated therewith.

The pressure chambers are, in the illustrated embodiment of my inventiomshown as cylinders 11, 12 and 13 suitably mounted in the body 11 ot the lower pressing element and are vprovided be these are connected by an equalizing conduit f 15.',The movable part in each cylinder is a piston 16, 17 or 18.

ylhe motion transmitting means between the pistons and the members 6,7 and 8 comprises levers 19, 20, and 21, each lever being pivoted between its ends at 22 to the body 14 ot the buck 2, and one arm thereof being pivf otally connected at 23 to the stem 24, 25 or 26 ot the corresponding piston 16,-17 or 18 and the other arm ot the lever thrusting against a pedestal 27, 28 or 29 which supports the corresponding member 6, 7 ,or 8. The stem 27, 28, or 29 is slidably mounted in a suitable guide opening in the body 14 of the buck 2.

A hydraulic fluid as oil may be used inthe system including the cylinders and the equalizing conduit, or compressed air may be used and the equalizing conduit may be co`nnected to a suitable source ot supply through va feed pipe 30 and the pressure in the cylinders may be reduced or increased, as desired, to reduce o r increase the pressure between the pairs of members 8, 6; fl, and 5, 8.

The head 1 is supported in any suitable manner as by a yoke lever 31 pivoted between its ends at 32 to a standard 33 rising trom the trame 34 of the machine, and the body 14C ot the buck 2 is mounted on the trame or' a table 35 forming a part thereof.

The head 1 or the lever 31 may be actuated in any suitable manner either .by man or motor power and is here shown as actuated by a piston movable in the cylinder 36 and having its rod 37 connected to one arm 88 of an angle lever pivoted to the frame, the other arm 39 of the angle lever being pivoted at 40 to the lower end of the link 41 forming a vtoggle therewith. rIhe upper end of the link 41 is pivoted to the rear arm of the yolie lever 3l. The piston is single acting and When the pressure in the cylinder 3G is released, the press is opened by a counterweight 42 and springs 43 and 44.

The flow of motive fluid to and from the cylinder 36 is controlled in any suitable manner as by a push button 45 and lever 46. The means for actuating the head and for controlling the operation thereof forms no part of this invention and is not necessary for an understanding thereof. It is sufficient to bear in mind that the press is opened and closed in any suitable manner.

In Figure 4, the intermediate member 50 of the buck is rigidly mounted on the buck, but the two outside members which press the cuffs are movably mount-ed in the same manner as the members 7 and 8 of the machine shown in Figure l and there are pressure chambers 12, 13 with pistons 17 and 18 movable therein which are connected through lever 20 and 21 to the members 9 and 10. These chambers 12 and 13 are connected by an equalizing conduit 15.

In operation, when the head closes if the pressure is not equal between the members ofthe buck, the pressure is equalized through the cylinders, the equalizing conduit and the Ilevers 19, 2O and 21 and the full pressure delivered may be varied by varying` the amount of pressure in the cylinders so that the cylinders may actto some extent as actuators for the members 6, 7 and 8.

This pressing machine is of the type shown in my Patent No. 1,682,488 issued August 28, 1928, in which a mechanical means is shown for equalizing the pressure between the movable members of the buck.

What I claim is:

1. In a pressing machine, the combination of cooperating pressing elements, one of which is movable toward and from the other Yand each including a plurality of members ,paired with the members of t-he other element, the members of one element being movable relatively to each other under the pressing action of the members of the other element, means for ecpializing` the pressure between the relatively movable members of one of said elements including pressure chambers, one for each of the relatively movable members of said element, an equalizing conduit connecting said chambers, a pressure operated part movable in each chamber, and motion transmitting means including levers between each of said parts and its associated Vrelatively movable member, and a feed pipe for a fluid under pressure connected to the equalizing conduit.

2. In a pressing machine, the combination of cooperating pressing elements, one of which is movable toward and from the other Vand each including aplurality of members paired with the members of the other element, the members of one element being movable relatively to each other under the pressing action of the members of the other element, and means for equalizing the pressure between the relatively movable members of one of said elements including pressure chambers, one for each of the relatively movable members of said element, an equalizing conduit connecting said chambers, pressure operated parts in the respective chambers, and motion transmitting means between the pressure operated parts and their respective relatively movable members including a lever interposed between each of said parts and its associated relatively movable member. l

In testimony whereof, I have hereunto signed my name at Syracuse, in the county of @non daga, and in the State of N ew York, this 2nd day of May, 1928.

Y ERNEST DAVIS. 

